422242244020 has 96 divisors (see below), whose sum is σ = 973855159200. Its totient is φ = 153067536384.

The previous prime is 422242243999. The next prime is 422242244027. The reversal of 422242244020 is 20442242224.

It can be written as a sum of positive squares in 16 ways, for example, as 8551440676 + 413690803344 = 92474^2 + 643188^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 422242244020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422242244027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3620376 + ... + 3735184.

It is an arithmetic number, because the mean of its divisors is an integer number (10144324575).

Almost surely, 2^422242244020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422242244020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486927579600).

422242244020 is an abundant number, since it is smaller than the sum of its proper divisors (551612915180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422242244020 is a wasteful number, since it uses less digits than its factorization.

422242244020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115237 (or 115235 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 422242244020 its reverse (20442242224), we get a palindrome (442684486244).

The spelling of 422242244020 in words is "four hundred twenty-two billion, two hundred forty-two million, two hundred forty-four thousand, twenty".